ROME, SEPT. 4 -- Jackie Joyner-Kersee, 25, of East St. Louis, Ill., won the women's long jump today to become the World Athletics Championship's second double gold medal winner.

But decathlon record-holder Daley Thompson of Great Britain didn't win one; he lost for the first time since 1978.

"I'm really happy," said Joyner-Kersee after her meet record 24 feet 1 3/4 inches. "Being up on that victory stand was a good feeling."

She holds the world record in the seven-event heptathlon and had stood on the same podium only last Tuesday listening to the Star-Spangled Banner after she won a gold in that event.

The day also featured a spectacular performance by Abdi Bile of Somalia, who runs for George Mason University. He set a meet record in the 1,500 meters by winning his semifinal heat in 3:35.67 and will race for the championship Saturday.

In other finals completed today, Norway's world record holder, Ingrid Kristiansen, set a meet record in the 10,000 meters with a time of 31:05.85 and Bulgaria's Ginka Zagorcheva set another meet record in the 100-meter hurdles, which she ran in 12.34 seconds.

Jurgen Schult of East Germany won the men's discus with a throw of 225 feet 6 inches, with John Powell, 40, of the United States second at 217-3. Pan American Games champion Luis Delis of Cuba was third at 216-7. Powell's silver medal was a surprise. He had not had a throw in the best 20 of the year coming into the championships.

In the decathlon, East Germany's Torsten Voss humbled Thompson. Thompson, hampered by a groin injury and competing in his specialty for the first time in a year, finished ninth. George Mason's Rob Muzzio was 13th.

Voss won with 8,680 points; Thompson, the defending champion, two-time Olympic gold medalist and world record-holder at 8,847 points, had 8,124. Muzzio had 8,017.

It was the first time since 1978 that Thompson had lost in the decathlon. Sigfried Wentz of West Germany was second at 8,461, with Pavel Tarnovetsky of the Soviet Union third at 8,375.

At the end of the two heats of the 1,500 meters, the final event in which Thompson finished next-to-last in his heat, the three medalists went up to him and shook his hand. Then all four men, winners past and present, clasped hands and saluted the cheering crowd.

"People are used to seeing me perform at my best," Thompson said in an interview with the BBC. "This was one of those rare times when I didn't and the consequences were that I finished where I did . . . Now I know what it's like to lose and it will never happen again."

The major duel of the day, however, was between Joyner-Kersee and East Germany's Heike Drechsler, co-holders of the women's long jump record of 24-5 1/2.

Drechsler, second in the 100 meters earlier in the week, skipped the 200 to be able to compete in the long jump.

But she quit after hurting her left knee on her fourth jump, and settled for the bronze medal at 23-4 3/4. She finished just behind Elena Belevskaya of the Soviet Union, who took the silver at 23-5 1/4.

"I knew this was going to be a very tough meet because of Drechsler," Joyner-Kersee said afterward. "When she injured herself I felt very bad because I hate to see any athlete hurt. But I don't think it affected the way I jumped one way or the other."

On the victor's podium there was a moving moment when Drechsler hugged tearful Joyner-Kersee and said: "You are the best."

"For her to say that made me feel very good because we are both the best; we both have jumped just as far," said Joyner-Kersee.

Asked if she thought after her two gold medals she now considered herself the number one woman's athlete in the world, Joyner-Kersee chose to be modest.

"I don't know -- that is a difficult question for me to answer," she said. "That is really up to others to judge, I just look to excel at what I am doing and do the very best possible job I can. But if some other people think I'm the world's best, I'll take it."

In other events, the East Germans made another strong showing in the women's 100-meter hurdles behind winner Ginka Zagorcheva of Bulgaria. East Germany's Gloria Uibel and Cornelia Oschkenat were second and third, respectively, with times of 12.44 and 12.46. The only American in the final was Lavonna Martin, eighth at 13.06.

In the men's 5,000 meters semifinal heats today the big surprise was the meet record of 13:22.68 set by Kenya's John Ngugi. The other heat in the event was predictably won by world record holder Said Aouita of Morocco in a relatively slow 13:28.63. In that heat South African-born U.S. runner Sydney Maree placed fourth at 13:28.86 to qualify for Sunday's final.

The big surprises in the 1,500 semifinals were Bile and the third-place finish of former record holder Steve Cram of Britain. Spain's Jose Luis Gonzalez was second. The second semifinal heat was won by East Germany's Jens Peter Herold in a slow 3:40.57, with America's Jim Spivey second in 3:40.63 and Kenya's Kipkoeh Cheruiyot third with 3:40.64.

Other qualifiers of note for the Saturday 1,500 final were Kenya's Joseph Cheshire, the Sudan's Omar Khalifa and American Steve Scott.

In a world championship meet innovation, races were also held today for wheelchair athletes. Women raced 800 meters and the men 1,500.

Canada's Diane Rakiecki, 15, won the women's race in 2:32.52. France's Mustapha Badid led the men in 3:54.32.